A dietary supplement including a unique combination of fruits, vegetables, herbs, and optionally vitamins, minerals and specialty ingredients. The supplement can include a fruit ingredient, a vegetable ingredient and an herbal ingredient, wherein the fruit ingredient is at least one of pomegranate and citrus bioflavonoids, wherein the vegetable ingredient is at least one of asparagus, lutein, lycopene and watercress, and wherein the herbal ingredient is at least one of basil, oregano and rosemary. The supplement can be administered to subjects to reduce risk factors in a subject, for example, by lowering homocysteine levels and/or reducing DNA damage. The supplement can increase plasma levels of at least one of vitamin B6, Vitamin B12, folate, and beta-carotene and other vitamins or substances in the subject.